Just click on the screen size resolution that you would like and it will unzip to your windows folder.
Then right click on your desktop, click on "properties" and then "desktop". Just scroll down until you come to your new background...or you can unzip it and install it yourself.
If you would like one to print out just download the psp version...the days of the month are all on seperate layers so if
you would like to add a birthday or something in that day you can. :o) Just print it out in "Landscape" mode, and "best fit to page".
I hope you enjoy your calendar!